Samsung c9 pro display issue - Samsung C9 Pro Questions & Answers

Hello everybody. Do you have the same result with viewing angles? youtu.be/oC1xo-XSX-g
I don't see nothing like this on my old note 3 ...

C9 Pro doesnt have that

AL_IRAQI said:
C9 Pro doesnt have that
Click to expand...
Click to collapse
Well..Mine does. I made that video

Mine also doing the same.

Ok, so it seems like it is not the particular one issue, that is what I want to figure out..
Any other experience...?

Related

Huawei Nova vs Asus Zenfone 3 ZE520KL

Hello guys, i would like to get one of this two smartphones, which one will you recomend and why ?
Thanks P.S. Sorry for the missing "e".
Zenfone, It has working TWRP i heard, plus ASUS is an english company so it's easier to contact them in case of problems
Nova Plus is the best phone i had til now...its FAST,lots of space....the only thing is when taking pics/vids with low lightning,images are too dark...but its supposed to be fixed with the coming nougat/emui5
its been 3-4 weeks in my hand now and no problems with what came in the phone originally...no bugs/force closing ect...
mine is surprisingly fast charging (though i heard some,having nova plus with slow charging problems...) and for what i do with it,the battery is running for a long period.
i dont know the zenfone at all and didnt check the specs but.... i REALLY like the Nova Plus
sanskimost said:
Zenfone, It has working TWRP i heard, plus ASUS is an english company so it's easier to contact them in case of problems
Click to expand...
Click to collapse
Just to be clear, ASUS is Taiwanese.
wangdaning said:
Just to be clear, ASUS is Taiwanese.
Click to expand...
Click to collapse
Sorry, I meant to say they have more presence in Europe and NA so they have much better English support

J7 Pro AOD problem

Hi everybody. Recently I bought a J7 pro for several reasons, one of which was Always on Display, a.k.a AOD. However from the first night I used it as a night clock I could apparently see that the background of the clock and notifications is not black and has a faint light. The funny part is that the preview of AOD is fine with all the black pixels off, but when you actually use it, all the pixels are on. I asked several J730F owners and they had the same problem, however my device is J730G. Please test and report. Just remember the environment must be completely dark.
____________________________________________________
UPDATES:
Fixed Custom Rom (with battery drain):
https://forum.xda-developers.com/showpost.php?p=76737172&postcount=210
Partial Fix (Needs changing the Kernel):
https://forum.xda-developers.com/showpost.php?p=76076708&postcount=186
Fixed Firmwares:
https://forum.xda-developers.com/showpost.php?p=75513596&postcount=103
https://forum.xda-developers.com/showpost.php?p=75868032&postcount=114
Tested other versions of AOD app:
https://forum.xda-developers.com/showpost.php?p=74429656&postcount=24
Link to the thread I started on Samsung official forum:
https://us.community.samsung.com/t5/Other-Mobile-Devices/J7-pro-AOD-problem/td-p/168875
Update on Oreo and Pie
https://forum.xda-developers.com/showpost.php?p=79764566&postcount=229
Hey
I have the same problem
I have a j730f/D's
It's really frustrating and I guess it drains the battery a lot
I also noticed the that the preview of the aod is perfect on all brightness levels
Maybe thats because the display panel uses different settings when real aod is on ( like udervoltage and lower refresh rate things like this but I am not an expert )
Also visible on 3rd party apps from the PlayStore
I guess Samsung is using some hardware tweaks there to optimise battery life
What I also noticed is when the real aod is set to full brightness because of the sunlight the screen really gets black ( you can try this with a flashlight or so )
But on the lowest brightness the screen gets grey .
Would love to know if this is just software related or hardware
Because if it is hardware I give it a try and send it back
wer wo was said:
Also visible on 3rd party apps from the PlayStore
Click to expand...
Click to collapse
I have no problem on 3rd party apps, yet battery drain is not acceptable.
wer wo was said:
What I also noticed is when the real aod is set to full brightness because of the sunlight the screen really gets black ( you can try this with a flashlight or so )
But on the lowest brightness the screen gets grey .
Would love to know if this is just software related or hardware
Because if it is hardware I give it a try and send it back
Click to expand...
Click to collapse
That's exactly my situation as well. On low brightness the screen is unbearably gray, otherwise it seems to be completely black. I guess you can try sending it back, unfortunately I don't have that option.
3rd party apps sucks because they can't use this special display mode Samsung uses
Maybe I will send it back
But I am not sure about that I wanted to wait until an update is coming, maybe it's software related so they can fix it .
I also send an email to Samsung but I saw your post on the Samsung forum so I don't expect too much
With how many ppl did you talk about that problem that have the j730f ? I mean it doesn't make sense to send it back and get a new one if it is a problem for every device
I got the same issue on my J730G/DS. When on low brightness aod, i can notice the whole screen lighting up a little bit. But on high brightness it is completely black. I think all j7 pro have this issue. At least we could try to send it back to samsung and see if they will fix or even do something about this issue.
wer wo was said:
3rd party apps sucks because they can't use this special display mode Samsung uses
Maybe I will send it back
But I am not sure about that I wanted to wait until an update is coming, maybe it's software related so they can fix it .
I also send an email to Samsung but I saw your post on the Samsung forum so I don't expect too much
With how many ppl did you talk about that problem that have the j730f ? I mean it doesn't make sense to send it back and get a new one if it is a problem for every device
Click to expand...
Click to collapse
I found 2 users with the same problem.
game.tikboy said:
I got the same issue on my J730G/DS. When on low brightness aod, i can notice the whole screen lighting up a little bit. But on high brightness it is completely black. I think all j7 pro have this issue. At least we could try to send it back to samsung and see if they will fix or even do something about this issue.
Click to expand...
Click to collapse
Unfortunately we don't have a robust Samsung representative here and I believe we cannot convince them about this issue. I believe you guys should go for the guarantee. This way at least you raise the issue to their awareness in practice.
I have the same issue too.
I've chatted with samsung and ask them to try this but they keep saying "All of our units are fine".
JasonS. said:
I have the same issue too.
I've chatted with samsung and ask them to try this but they keep saying "All of our units are fine".
Click to expand...
Click to collapse
In fact, as I check the problem with several users of the 16 and 32 GB variants of both Chinese and Philippines models, it seems ALL their units are faulty.
Greight said:
In fact, as I check the problem with several users of the 16 and 32 GB variants of both Chinese and Philippines models, it seems ALL their units are faulty.
Click to expand...
Click to collapse
I think we can just hope that Samsung want to release an update for our J7 Pro AOD
Has anybody send the J7 Pro back to samsung store?
JasonS. said:
I think we can just hope that Samsung want to release an update for our J7 Pro AOD
Has anybody send the J7 Pro back to samsung store?
Click to expand...
Click to collapse
I found several threads out there talking about this problem. Generally the problem was with S7 and other Samsung flagship devices. In all the circumstances there, the problem only was fixed by changing the AMOLED panel. However here in J7 pro it seems that when the screen is well lit, the black is truly black and when the ambient sensor reduces the light the problem shows its ugly face. This problem was not mentioned anywhere in those threads I mentioned.
Greight said:
I found several threads out there talking about this problem. Generally the problem was with S7 and other Samsung flagship devices. In all the circumstances there, the problem only was fixed by changing the AMOLED panel. However here in J7 pro it seems that when the screen is well lit, the black is truly black and when the ambient sensor reduces the light the problem shows its ugly face. This problem was not mentioned anywhere in those threads I mentioned.
Click to expand...
Click to collapse
I don't wanna waste any more money on my phone. So yeah let see what will Samsung do. It's impossible that this is the AMOLED panel fault. Looks like the version of our AOD is a bit old. Try compare it with the A 2017 Nougat AOD.
JasonS. said:
I think we can just hope that Samsung want to release an update for our J7 Pro AOD
Has anybody send the J7 Pro back to samsung store?
Click to expand...
Click to collapse
i tried atleast 3 different third party aod apps and all worked fine but only fault was battery consumption. so maybe it is not hardware problem. its just software related. we can only hope that samsung fixes it soon by update
[email protected] said:
i tried atleast 3 different third party aod apps and all worked fine but only fault was battery consumption. so maybe it is not hardware problem. its just software related. we can only hope that samsung fixes it soon by update
Click to expand...
Click to collapse
Although I hope so and believe that j7 problem is different from previous problems seen on other faulty aods, but the way aod works is different from the way other aod apps work.
Hey guys
I've borrowed my friend's J7 Pro to see if she had this AOD problem. After I bring it to a very dark place, the AOD works like it should (No grayish AOD background). Guess it's a hardware problem. I will try to send it back to Samsung if I have time.
JasonS. said:
Hey guys
I've borrowed my friend's J7 Pro to see if she had this AOD problem. After I bring it to a very dark place, the AOD works like it should (No grayish AOD background). Guess it's a hardware problem. I will try to send it back to Samsung if I have time.
Click to expand...
Click to collapse
Have u tried it when the screen light adjusts to the dark environment? If so please do send it back to make sure what the source of the problem is.
Greight said:
Have u tried it when the screen light adjusts to the dark environment? If so please do send it back to make sure what the source of the problem is.
Click to expand...
Click to collapse
The AOD uses the ambient light sensor to decide what brightness should be used ( I think AOD only recognize Dark and Bright situation, just like most of the proximity sensors )
So because it's dark, the screen also adjust itself to dark situation. No grayish background is seen. I compare mine with her side by side and I can see the difference.
Another thing to proof that this is a hardware problem is that when you put your finger on the fingerprint sensor and it unlocks, between the unlocking process, you can see the screen flicker before it unlocks the phone. Same as when you boot up the phone. Right after when you press the power button and it vibrate, you can see a flicker before "Samsung Galaxy J7 Pro" is shown.
JasonS. said:
The AOD uses the ambient light sensor to decide what brightness should be used ( I think AOD only recognize Dark and Bright situation, just like most of the proximity sensors )
So because it's dark, the screen also adjust itself to dark situation. No grayish background is seen. I compare mine with her side by side and I can see the difference.
Another thing to proof that this is a hardware problem is that when you put your finger on the fingerprint sensor and it unlocks, between the unlocking process, you can see the screen flicker before it unlocks the phone. Same as when you boot up the phone. Right after when you press the power button and it vibrate, you can see a flicker before "Samsung Galaxy J7 Pro" is shown.
Click to expand...
Click to collapse
Please do us all a huge favor and take some time and send the device to Samsung (I would if my phone was under warranty) so we can make sure what the root of the problem is and don't raise our hopes. :good:
Greight said:
Please do us all a huge favor and take some time and send the device to Samsung (I would if my phone was under warranty) so we can make sure what the root of the problem is and don't raise our hopes. :good:
Click to expand...
Click to collapse
I will find some time to send it back to Samsung. The distance from My home to the nearest Samsung Service Center is very far, took me about half an hour with usual traffic. But they are usually traffic jammed, so I predict an hour trip to the SSC. Not an easy job though I'm very busy all day.
Latest response from one of Samsung forum moderators
Latest response from one of Samsung forum moderators:
Hey folks.
This Community works largely with US based devices so it's hard for us to speak on what may or may not have been in that update to cause this. You are welcome to see if the Community can assist, but as many may not have the same device as you it might also be worth reaching out to your region specifically for more in depth assistance!
Click to expand...
Click to collapse
I have this issue ever since I bough the phone in early August. Not 1 but 2 unit, model SM-J730G/DS. Both show the same symptom. Do Samsung selling phone with defect amoled panel or poor software implementation? What the hell!
If you all notice, the official samsung's AOD app for our J7 pro is not available anymore in Play Store. Why they remove support for our device? Why? From the feedback there, a lot of j7 pro owner report about this aod problem...

Black Crush S10 Plus ?

I bought a galaxy S10 Plus recently and I already noticed the same problem of display as my old galaxy s9 plus, the dark parts are pixelated, the famous black crush, I am well stressed, I sold my s9 plus and bought the s10 plus only because of this problem, is there any way to resolve this without application? the screen balance spoils the image more than it improves.
rodrigoduarteh said:
I bought a galaxy S10 Plus recently and I already noticed the same problem of display as my old galaxy s9 plus, the dark parts are pixelated, the famous black crush, I am well stressed, I sold my s9 plus and bought the s10 plus only because of this problem, is there any way to resolve this without application? the screen balance spoils the image more than it improves.
Click to expand...
Click to collapse
Did you try normal mode instead of vivid?
Mohamad Gahed said:
Did you try normal mode instead of vivid?
Click to expand...
Click to collapse
Yes, the same thing remains...
Can you solve this? I used an application but if it closes it unintentionally the bad effects come back and it brightens the blacks but worsens the rest
Edit 1 :
I've done it until the hard reset did not solve it, I restored the original software from Brazil's sammobile site and it also did not change anything ... what can I do?
rodrigoduarteh said:
Yes, the same thing remains...
Can you solve this? I used an application but if it closes it unintentionally the bad effects come back and it brightens the blacks but worsens the rest
Edit 1 :
I've done it until the hard reset did not solve it, I restored the original software from Brazil's sammobile site and it also did not change anything ... what can I do?
Click to expand...
Click to collapse
I don't really now but everyone tested the screen said it is the best in any mobile device to date
Mohamad Gahed said:
I don't really now but everyone tested the screen said it is the best in any mobile device to date
Click to expand...
Click to collapse
My display...
I'm still suffering from color mixing, how do I solve it?
Mohamad Gahed said:
I don't really now but everyone tested the screen said it is the best in any mobile device to date
Click to expand...
Click to collapse
if you look well to see the background pixelated in the colors, it is getting worse every day ..
Is very bad...
knife2241 said:
If it's a problem getting worse each day either return the device or contact Samsung for a warranty. I have zero problems with mine .
Click to expand...
Click to collapse
I bought mine at a clear call operator in Brazil, the deadline for the default return is 7 days, I bought day 5 I think it's gone, will the technical assistance solve this without further problems?
That sucks. My S10+ doesn't have this problem. I hated that **** on my S9+.

low touch latency on redmi note 7

I wonder do anyone else face this problem?
When i scroll through things, it seem to lag behind a bit. I also tried to compare it with other phones and this phone seem to have a much higher touch latency than the others.
Anyone facing similar issues on this phone?
I have the EEA version of the phone and nope, no troubles at all and the touch is so responsive and smooth ?
The same problems here, Global version.
same here, global variant RN7
Chocorap said:
The same problems here, Global version.
Click to expand...
Click to collapse
Mines global version too. Is urs 128gb?
AbboodSY said:
I have the EEA version of the phone and nope, no troubles at all and the touch is so responsive and smooth ?
Click to expand...
Click to collapse
What's the EEA version? And have you tried to compare it with other touch monitors?
bbtee said:
Mines global version too. Is urs 128gb?
Click to expand...
Click to collapse
Mine 4/64
Same problem. Very frustrating. RN 7 global version, 4/64gb
Yes, me too. Especially annoying when typing - keyboard is very laggy and driving me crazy.
I had the same feeling on my old crappy Mi A2 Lite. It was much better after switching to a custom Kernel (Butterfly Kernel).
Now I have the 128GB Global RN7 and touch responsiveness feels just fine. No problems at all.
what MIUI version you guys use?
some people who use miui 10.3.5 global rom have possible same problem with yours
https://forum.xda-developers.com/showpost.php?p=79431079&postcount=7
https://forum.xda-developers.com/showpost.php?p=79445902&postcount=29
https://forum.xda-developers.com/showpost.php?p=79448420&postcount=30
sorry for my bad english
gnetumgnemon said:
what MIUI version you guys use?
some people who use miui 10.3.5 global rom have possible same problem with yours
https://forum.xda-developers.com/showpost.php?p=79431079&postcount=7
https://forum.xda-developers.com/showpost.php?p=79445902&postcount=29
https://forum.xda-developers.com/showpost.php?p=79448420&postcount=30
sorry for my bad english
Click to expand...
Click to collapse
I have the newly updated 10.3
BJumperBR said:
I had the same feeling on my old crappy Mi A2 Lite. It was much better after switching to a custom Kernel (Butterfly Kernel).
Now I have the 128GB Global RN7 and touch responsiveness feels just fine. No problems at all.
Click to expand...
Click to collapse
What miui version are you on?
So far, my Global Version 3 day old RN7 on 10.3.5 doesn't seem to have bad touch latency.
Was nervous about that considering this phone is my first Xiaomi device.
So far so good.
Have you all tried using the old Touch Screen Booster app? Not sure if the apk is still on the Play store.
Try the app if you can. It fixes a lot of touch sensitive issues without root.
Won't make your phones touch response iPhone level smooth but it will fix whatever ailments you're having
I have the RN7 Global and not facing any of the problems people comment about the phone... No lags, no video rec problems, no battery drain, none of all...
My guess: We would face palm us hard if we knew what apps some people install...
tiguy99 said:
So far, my Global Version 3 day old RN7 on 10.3.5 doesn't seem to have bad touch latency.
Was nervous about that considering this phone is my first Xiaomi device.
So far so good.
Have you all tried using the old Touch Screen Booster app? Not sure if the apk is still on the Play store.
Try the app if you can. It fixes a lot of touch sensitive issues without root.
Won't make your phones touch response iPhone level smooth but it will fix whatever ailments you're having
Click to expand...
Click to collapse
I tried that and it doesn't work.
bbtee said:
What miui version are you on?
Click to expand...
Click to collapse
10.3.5.0
bbtee said:
I tried that and it doesn't work.
Click to expand...
Click to collapse
Man... Sorry to hear.
Is the app the one that's got the neon green color icon?
If that doesn't work your digitizer could be defective or the update to 10.3.5 could have altered how your touch input functions.
If that's the case, you could also try both touch screen repair and touch screen calibration apps.
Unlike SGS, they're both paid apps in the app store that should help improve your touch response without root.
I used both on my honor 8 and can vouch they improve touch latency response on our phones
tiguy99 said:
Man... Sorry to hear.
Is the app the one that's got the neon green color icon?
If that doesn't work your digitizer could be defective or the update to 10.3.5 could have altered how your touch input functions.
If that's the case, you could also try both touch screen repair and touch screen calibration apps.
Unlike SGS, they're both paid apps in the app store that should help improve your touch response without root.
I used both on my honor 8 and can vouch they improve touch latency response on our phones
Click to expand...
Click to collapse
I also tried those and they say my original latency is around 47 ms, which is quite okay by this number, but it just doesn't really feel right. Everytime i scroll something, it just seem to lag behind quite a bit unlike other phones. Just tapping on things seems really fine though, no delay for that. And i also went to the store today and tested the demo there. I found out that the demo also have a similar problem. Can i conclude that this problem is not a defect for my phone?
bbtee said:
I also tried those and they say my original latency is around 47 ms, which is quite okay by this number, but it just doesn't really feel right. Everytime i scroll something, it just seem to lag behind quite a bit unlike other phones. Just tapping on things seems really fine though, no delay for that. And i also went to the store today and tested the demo there. I found out that the demo also have a similar problem. Can i conclude that this problem is not a defect for my phone?
Click to expand...
Click to collapse
Not sure.
1. Are you also on MIUI ver 10.3.5?
2. Was your touch response ever working fine beforehand and the latest update broke it?
3. What other phones are you comparing the RN7's touch response with?
For me I'll answer:
1. Yes... But I find then touch response the same vs the prior version of MIUI that was on my phone right before it updated to 10.3.5
2. See my response to #1
3. I'm comparing the touch to:
IPhone 6s(which is still the fastest touch response to date), Honor 8 which was great but with the apps above, touch latency/response improved and Galaxy S9+.
I find Redmi Note 7 is slower than our iPhone 6S, close to my Honor 8 with the apps mentioned in the previous post and on par with the S9+ I played with in store.
I found that bizzare since AMOLED screens typically have faster touch response vs IPS/LCD etc.
What are you guys seeing?

Dark bleeding - 1 month old

Hello guys, I'm new on Mi 9t, I have it since one month now.
I'm running 11.0.5 global (waiting for miui 12) and everything is working smootly (a part some heating problems and battery drain).
Yesterday I noticed a BIG strange spot on the right side of the display only when I have a black/dark theme (for example on Telegram) and when brightness/light around the phone is low.
I tried to googled it but I didn't find anything useful and still don't understand if it's software or hardware. I just get that is a common issue of AMOLED screen but in 2020 I don't get how this is not fixable lol.
Any suggest?
Thanks in the advance and I wish you a happy day!
Nope, every AMOLED is like that. Tested even on the S10 plus. No worries
Marius_Kun said:
Nope, every AMOLED is like that. Tested even on the S10 plus. No worries
Click to expand...
Click to collapse
So there aren't any solutions? :/ It's just luck and time?
Gonna have to provide a picture (if it shows) to see what you are trying to describe bro.
h320 said:
So there aren't any solutions? :/ It's just luck and time?
Click to expand...
Click to collapse
Nope. It's just the way AMOLED is. Had this on every AMOLED device i tried

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